Universal Preamplifier 14 (UP14) is designed for TDMR and HAMR Head Amplifiers. With new Guzik RWA4000 TDMR, UP14 allows to process signals from three Read Channels. It also supports two high speed data channels for Write data and Laser data. UP14 has two channels for dynamic TFC control and allows to program TFC power per sector and close loop TFC power control in each channel. UP14 can generate two programmable modulation signals for write data and laser data with bandwidth up to 20 MHz. UP14 consist of two boards. The first UP14 RW Board processes high-frequency signals: read-back signals, write data and laser data. The second UP14 Control Board provides power, control and low-frequency signal generation: TFC, write data modulation and laser modulation.

Write Channel & Laser channel

Up to 8 Gbit/sec data speed

30 ps rise/fall time of write data (20-80%, typical)

Positive +2.5V CML data outputs

TFC Control

Dual channels TFC Control

Maximum TFC Voltage: 4.5V

Fully programmable dynamic TFC Control with possibility to program power on each sector

Close loop TFC power control

Bandwidth: DC to 10 MHz

12-bit resolution

Head Amplifier control

Real time control per sector

16 Mb SRAM Memory

To store settings for real-time control of TFC, Headamplifier registers, Write current, and Laser modulation